发明申请
US20050118113A1 Powder particles with smooth surface for use in inhalation therapy
有权
具有光滑表面的粉末颗粒用于吸入治疗
- 专利标题： Powder particles with smooth surface for use in inhalation therapy
- 专利标题（中）： 具有光滑表面的粉末颗粒用于吸入治疗
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申请号： US10806240申请日： 2004-03-23
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公开(公告)号： US20050118113A1公开(公告)日： 2005-06-02
- 发明人: Giovanni Caponetti , Pier Catellani , Ruggero Bettini , Paolo Colombo , Paolo Ventura
- 申请人： Giovanni Caponetti , Pier Catellani , Ruggero Bettini , Paolo Colombo , Paolo Ventura
- 申请人地址： IT Parma
- 专利权人： Chiesi Farmaceutici S.p.A.
- 当前专利权人： Chiesi Farmaceutici S.p.A.
- 当前专利权人地址： IT Parma
- 优先权： ITMI99A001582 19990716
- 主分类号： A61K9/00
- IPC分类号： A61K9/00 ; A61K9/14 ; A61K9/16 ; A61K9/72 ; A61K47/26 ; A61K47/40 ; A61K31/4745 ; A61L9/04
摘要：
Carrier particles, for use in the preparation of powdery mixtures for administration by inhalation, and having a median diameter of greater than 90 microns and a surface rugosity expressed as the fractal dimension of less than or equal to 1.1, may be prepared by subjecting particles having a median diameter of greater than 90 microns to repeated stages of wetting with a solvent and drying.
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